POST METHOD
In this example we are going to show how we can make
use of the POST in the JSP. After going through this example you
will better understand the concept of the POST. Post is mainly used to
send the data to the server and to retrieve the data from the server. In POST
the data will not get appended in the URL but sent across with the body
of the content.
Firstly in this example we are going to make one jsp
form which will some textfields and a submit button. The user will fill up the
form and the request will be submitted to the controller which will perform rest
of the task and gives back the response.
This form contains some textfield like name, password,
one radio button that is of sex, one checkbox, one option button and a submit
button. The user has to fill up the form and as soon as the user fills the form
and clicks a submit button the request goes to the controller. The path of the
controller is given in the form attribute action and the method which
will be used to send the data to server is post which is defined in the
form attribute method.
As soon as the controller gets the request it matches
all the parameters we have passed in the form and the result is displayed to the
user.
Code of the indexPostForm.html.txt
file:
<html>
<head><title>JSP Form Post Example</title></head>
<body>
<center><table border="2">
<tr>
<td>JSP Form Post Example</td>
</tr>
<td>
</center></table>
<center><table border="2">
<form action="nextPageToPost.jsp" action="post">
<center><table border="2">
<tr>
<td align="center"colspan="2"><h4>
Enter data for post to next page <h4></td>
</tr>
<tr>
<td>Enter your name</td>
<td><input type="text" name="name"></td>
</tr>
<tr>
<td>Enter your password</td>
<td><input type="password" name="password"></td>
</tr>
<tr>
<td><b>Sex</b></td>
<td><input type="radio" name="sex" value="Male">Male</td>
<td><input type="radio" name="sex" value="Female">Female</td>
</tr>
<tr>
<td>Are you regular visitor of RoseIndia.net</td>
<td><input type="checkbox" name="check"></td>
</tr>
<tr>
<td>Nationality</td>
<td><select name="nationality" size="1">
<option>India</option>
<option>USA</option>
<option>UK</option>
<option>SRI LANKA</option>
</td>
</tr>
<tr>
<td>Description</td>
</tr>
<tr>
<td><textarea rows="2" name="description" cols="20">
</textarea></td>
</tr>
<tr>
<td><input type="submit" name="submit" value="submit"></td>
<td><input type="reset" name="reset" value="reset"></td>
</tr>
</form>
</table>
</center>
</body>
</html>
|
Code of the nextPageToPost.jsp
file:
<html>
<head><title>JSP Form Post Example</title></head>
<body>
<center><table border="2">
<tr>
<td><h3>Your message has been posted by using Post Method</h3></td>
</tr>
</center></table>
<center><table border="2" >
<tr>
<td><h4>Name:</h4></td><td><%=request.getParameter("name") %></td>
</tr>
<tr>
<td><h4>Password:</h4></td><td><%=request.getParameter("name") %></td>
</tr>
<tr>
<td><h4>Sex:</h4></td><td><%=request.getParameter("sex")%></td>
</tr>
<tr>
<td><h4>Are you regular <br>visitor of RoseIndia.ne</h4></td><td>
<% if(request.getParameter("check").equals("on"))out.println("Yes"); %></td>
</tr>
<tr>
<td><h4>Nationality</h4></td><td><%=request.getParameter("nationality") %>
</td>
</tr>
<tr>
<td><h4>Description</h4></td><td><%=request.getParameter("description") %>
</td>
</tr>
</center></table>
</body>
</html> |
The output of the program is given below:
Download
nextPageToPost.jsp file.
Download
indexPostForm..html file.
|
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